Visual C++ General Forum

error LNK2019: unresolved external symbol "void __cdecl GetVals(int &,int &)"

Wed, 25 Nov 2009 23:22:53 Z

Why do I get the following linking error. I am using Visual c++ 2008 Express Edition?
Following is the code.

// Listing 14.8 Without function pointers

#include

using

namespace std;

//void Square (int&,int&);

//void Cube (int&, int&);

//void Swap (int&, int &);

void

GetVals(int&, int&);

void

PrintVals(void (*)(int&, int&),int&, int&);

enum

BOOL { FALSE, TRUE };

void

main()

{

int valOne=1, valTwo=2;

int choice;

BOOL fQuit = FALSE;

void (*pFunc)(int&, int&);

while (fQuit == FALSE)

{

cout <<

"(0)Quit (1)Change Values (2)Square (3)Cube (4)Swap: ";

cin >> choice;

switch (choice)

{

case 1:pFunc = GetVals; break;

//case 2:pFunc = Square; break;

//case 3:pFunc = Cube; break;

//case 4:pFunc = Swap; break;

default:fQuit = TRUE; break;

}

if (fQuit == TRUE)

break;

PrintVals ( pFunc, valOne, valTwo);

}

void

PrintVals( void (*pFunc)(int&, int&),int& x, int& y)

{

cout <<

"x: " << x << " y: " << y << endl;

pFunc(x,y);

cout <<

"x: " << x << " y: " << y << endl;

}

MFC MDI app shell file open behavior changed on Windows 7

Wed, 25 Nov 2009 17:55:12 Z

Hi,

I have developed an MFC application with Visual Studio 2008 SP1 using the Feature Pack for MFC. It was started with an MFC App Wizard project as an MDI app and supports two file types. It has been developed on x64 versions of Windows as an x64 app. On Windows XP x64 and Windows Vista x64 when I click on a registered file type in Windows Explorer, my app opens and loads the file. Without closing the app and clicking on a second file, the file is loaded into a new MDI window in the same app instance. The same is true for a third, fourth and so on number of files. This is the desired behavior.

I have recently moved the project to Windows 7 release (Windows 7 Ultimate x64). The only consequence I have found so far is a behavior change in the way shell open of my file types is working on Windows 7. In Windows 7 when I click on a registered file type in Windows Explorer, my app opens and loads the file. Without closing the app and clicking on a second file, the file is opened in a new instance of my app, not a new MDI window in the same instance. I really prefer the former behavior, and would like some help with getting this to work like it did on previous versions of Windows.

Thanks,

John Price

Setting User Registry Keys (HKCU) From a Local System Account Service

Tue, 24 Nov 2009 22:09:04 Z

Greetings,

I have a service running on the local system account, from which I wish to modify the the registry settings for the logged on user in the currently active session. Note that if a process (service) is running in the local system account, accessing HKCU will redirect to HKCU\.Default, rather than to the hive of a logged on user in the active session.

From researching the net, I have figured this process to involve impersonating a logged on user from within my service and then accessing the registry. This works in as much as opening an HKCU key does in fact operate on the user's hive. HOWEVER, since the user that I am impersonating does not have authority to modify certain registry settings, once the service impersonates them it cannot modify the settings! AAAACKK!

So you figure, "Let's just adjust the priveledges of the token". Sorry, that won't work either, since AdjustTokenPriveledges will only modify existing privs that the token already has :(

So the question is, "How do you modify ANY registry settings for the logged on user of the active session from the local system account?"

So far, this is what I have.

Run a service in the local system account
From that service, obtain a process handle (via OpenProcess) to a process that is running in the active session of a logged on user (i.e., "explorer.exe"). This uses the toolhelp API and WTSGetActiveConsoleSessionId(), etc.
From the process handle, I obtain it's token
Using the token, call "ImpersonateLoggedOnUser"
Access the registry (And be denied!)
Call "RevertToSelf" to revert the service back to itself

What I need is a token that impersonates the user but has the priveledges of the local system account :)
Kind regards,

Steve

"Class doesn't support automation" error in VS

Sat, 21 Nov 2009 06:03:56 Z

I have exactly the same problem as described in this post of 9/11/2007 .
I'm trying to add a add an ATL Simple Object (Add, Class...). After I type in the short name and click Finish, I get a "Class doesn't support automation" popup error message.

Microsoft Visual Studio 2008
Version 9.0.30729.1 SP
OS Name Microsoft Windows 7 Professional
Version 6.1.7600 Build 7600

I'm trying to write a shell extension, but I cant get started...

WinDBG: How to find out Memory Leak with WinDBG

Wed, 25 Nov 2009 19:10:56 Z

Hi guys,

i have a app that has memory leaks but i can't find out with windbg.

void AllocateMemory()
{
     int* a = new int[2000];
     ZeroMemory(a, 8000);
     Sleep(1);
}

int _tmain(int argc, _TCHAR* argv[])
{   while(1)
     {
        AllocateMemory();
     }
     return 0;
}

i can't a complete call stack from my app. i know the real problem is in Testcpp!AllocateMemory function but this function doesn't show in the call stack.

options from my app in release mode:

Debug information format: /Zi
Generate debug info: YES (/DEBUG)
Optimization: Disabled (/0d)

In debug mode the call stack is OK but in release mode is NOK.

0:001> !heap -p -a 1156b8f0
    address 1156b8f0 found in
    _HEAP @ 390000
      HEAP_ENTRY Size Prev Flags    UserPtr UserSize - state
        1156b8e8 03eb 0000 [07]   1156b8f0    01f40 - (busy)
        Trace: 003f
        7c96eed2 ntdll!RtlDebugAllocateHeap+0x000000e1
        7c94b394 ntdll!RtlAllocateHeapSlowly+0x00000044
        7c918f21 ntdll!RtlAllocateHeap+0x00000e64
        40174c Testcpp!malloc+0x0000007a

Win23 Threads and Child Windows

Wed, 25 Nov 2009 17:36:11 Z

Hi,

I've been reading for sometime about win32 threads and can't quite understand if it's possible to create a child window to run in a different thread from it's parent?

Compiling C code on Visual Studio

Mon, 23 Nov 2009 16:08:44 Z

I have some C code which I need to compile on Visual Studio 2008. The code uses some features available in freebsd hence I provide the freebsd header files as a additional include dir.

I regularly get errors of the following form though,

c:\test\a\tools\Target\usr\include \sys/_types.h(88) : error C2628: '__ct_rune_t' followed by '__wchar_t' is illegal (did you forget a ';' ?)

It seems that Visual studio is treating it as a C++ compilation instead of C. The extensions of the files are .c and I have set the property of the compiler to be used to the C compiler. Is there any other setting that I need to do?

I'm sure I'm missing some additional configuration step.

Thanks for your help.

how to create a 64 bit c++ application with visual studio 2008?

Wed, 25 Nov 2009 15:10:17 Z

I am trying to build a c++ application for 64 bit platform.
I use visual studio 2008 and window server 2003 . i selelcted x64 platform at project property window and build solution with X64 configure tools. But the application can not run. The error message is: The imige file is valid, but is for a machine other than the current one. What is wrong with my application? how can I resolve this problem? Thanks!

my code is very simple for the purose of testing whether it is possible to create large matrix in 64 bit system. see below.

#include <iostream>
#include <vector>
using namespace std;

vector<vector<double> > dis;
int main()
{
    int N;
    cout<<"choose a size:"<<endl;
    cin>>N;

    dis.resize(N);
    for(int i=0; i<N;i++)
    {
        for(int j=0; j<N;j++)
            dis[i].push_back(j*1.11);
    }
    cout<<"rows of matrix"<<dis.size()<<endl;
    cout<<"cols of matrix"<<dis[0].size()<<endl;
    return 0;
}

Windows 7 Memory Dump

Wed, 25 Nov 2009 16:58:06 Z

When I start debugging Windows 7 Memory Dump file after a crash. VS Pro 2008 SP1 says the binary is not compatible. Why?

System Novice

CLR,How do I calculate FPS

Mon, 23 Nov 2009 07:18:14 Z

I use Application::Idle to calculate FPS, but it seems to be unsuitable. Becuase the Application::Idle does not like the CWinApp::Idle in MFC.
Application::Idle event is not called in every frame. Could somebody know how to calculate FPS in Visual C++ CLR project?

[STAThreadAttribute]
int main(array<System::String ^> ^args)
{
Application::EnableVisualStyles();
Application::SetCompatibleTextRenderingDefault(false);

Form1^ form1=gcnew Form1();
Application::Idle += gcnew System::EventHandler(form1,&Form1::Form1_Idle);
Application::Run(form1);
return 0;
}

public: System::Void Form1_Idle(System::Object^ sender, System::EventArgs^ e)
   {
    DWORD currentTime=GetTickCount();
    DWORD deltaTime=currentTime-m_PlayCurrentTime;

m_PlayCurrentTime=currentTime;

m_FPS->FrameCnt++;
m_FPS->TimeElapsed+=deltaTime;

    if (m_FPS->TimeElapsed >= 1000)
    {
     m_FPS->CalculateFPS();
     m_FPS->TimeElapsed -= 1000;
     m_FPS->FrameCnt    = 0;
     FPStoolStripStatusLabel->Text=L"FPS=" + m_FPS->dFPS.ToString();
    }
   }

Windows 7 Taskbar - the undocumented MSTaskListWClass !!!

Fri, 20 Nov 2009 22:33:42 Z

Hello everybody.

Sometimes it is needed to programmatically access the windows shell's taskbar. In previous versions of Windows, it was firstly the Tab-Control, then (for example in XP) the Toolbar. E.g. in XP, to access the taskbar (which is actually nothing more than a standard Toolbar) you should find Explorer.exe's windows in this hierarchy (of their classnames) : Shell_TrayWnd -> RebarWindow32 -> MSTaskSwWClass -> ToolbarWindow32. The last one - window named "Running Applications" of class "ToolbarWindow32" is the one which is usually subclassed.

Now in Windows 7 things changed. The last window in that chain - the actual taskbar - is not standard Toolbar (ToolbarWindow32) anymore. It is the window with MSTaskListWClass class now! This window does not react on any Toolbar messages like TB_BUTTONCOUNT or TB_HITTEST, etc. So it is impossible to interact with taskbar anymore!

Does anyone have any idea of how to access the Taskbar in Windows 7? Google gives nothing on MSTaskListWClass. Where can the documentation be found?

P.S.: The ITaskbarList interface is very poor, so it ain't an option :)

Thank you in advance.

Memory corruption possible with _SECURE_SCL ?

Thu, 26 Oct 2006 18:28:21 Z

So I had been having a problem for a few weeks where the dll for my bot would crash while unloading. It's one of those crashes where something was jacked up with the heap and the crash is when the program/dll is in the process of unloading, specifically the crash was when cleaning up boost::regex which I statically link to.

The odd thing, is that I could never reproduce this crash, but it would happen consistantly on other peoples machine.

A friend was even building the exact same code with the exact same version of visual studio 2005, resulting in a differently sized dll, and no crashes. I then started thinking something must be wrong with my 2005 install, maybe some jacked up libraries or something. Just before I re-installed 2005, it occured to me that I might know what the problem is. Also a few weeks ago, after discovering you can disable checked iterators and stuff in release mode, I changed some property sheets to define _SECURE_SCL=0, going for some extra performance. After removing that, and compiling again, the crash was finally gone, and the dll sized matched my friends. Problem solved.

My best guess as to the problem is that when I built boost to begin with, it wasn't built with _SECURE_SCL=0, so linking it into a program that was built with _SECURE_SCL=0 was resulting in something that hosed some memory. Does this sound accurate? Is _SECURE_SCL one of those options that must be defined in everything or nothing at all? I could find no mention of that in the docs, but after this experience it appears that it is a possibility. FYI I had it defined under preprocessor under project settings in the property sheet of my project.

Another part that stumps me, is why couldn't I ever reproduce the crash on my machine, even though it was building the same code, with the same msvc, with the same boost libraries as my friend, and him and other users got the crash(and resulting minidump file) on every single shutdown.

worker thread (MFC)

Wed, 25 Nov 2009 03:27:58 Z

I am looking for updating input data to worker threads in a multi-thread environment. I am thinking of terminating all worker threads and then creating new ones whenever the update request is received. Anyone knows how to terminate a worker thread from outside of it, meaning not using AfxEndThread()...

Or any other better solutions? Really appreciate all the suggestions.....

Set printer on SHELLEXECUTEINFO

Tue, 24 Nov 2009 14:20:04 Z

Hello guys,

I am trying to print a file using SHELLEXECUTEINFO. I have to use SHELLEXECUTEINFO because my file is *.html

and PrintDocument doesn't print correctly this kind of files. I want give to the user the option the select the printer on the network

and with the selected printer send directly to the selected printer the html file. When I execute this code, always the file is printed

on default printer. My code is below.

if( System::Windows::Forms::DialogResult::OK == this->printDialog1->ShowDialog() ){

     pin_ptr<const wchar_t> parameters = PtrToStringChars( this->printDialog1->PrinterSettings->PrinterName->ToString() );

     SHELLEXECUTEINFO si;
		
     memset(&si,0,sizeof(si));
     si.cbSize = sizeof(si);
     si.fMask = SEE_MASK_NOCLOSEPROCESS;
     si.hwnd = NULL;
     si.lpVerb = L"print";
     si.lpParameters = LPCTSTR(parameters);
     si.lpDirectory = NULL;
     si.nShow = SW_SHOWNORMAL;
     si.hInstApp = NULL;
     si.lpFile = LPCTSTR(path);
     ShellExecuteEx(&si);
}

Thanks,

Eduardo Miranda

child process termination info without wait time

Sun, 15 Nov 2009 11:57:40 Z

hi,

I am creating one application that receive command string and start the different application using createProcess().

So, when the child process terminates, i need to intimate parent process about it.

Actually,. i used WaitForSingleObject().

but, one problem is the parent application strucked(paused) untill child application terminated.

In my program, I continuously receive command string and start different application.

So, I can't wait each child process to terminate.

I got one suggestion to use thread for waiting child process termination.

But, that also problem, because i need to create thread for each child process and declare child process information structure globally for each createProcess().

my code is,
[code]

// while loop to check continuous socket connection
    while (1)
    {
        int str1,str2;
        char *cmdName = NULL;
        printf("while begin \n");
        aSock = INVALID_SOCKET;
        asSize = sizeof(serverSock);
        printf("a1\n");
        while(aSock == INVALID_SOCKET)
        {
            printf("while aSock= %d\n",aSock);
            aSock = accept(sock, (struct sockaddr *)&serverSock,(int *) &asSize);
            printf(" aSock = %d\n",aSock);
        }
        printf("aSock= %d\n",aSock);
        printf("a3\n");
#if 0
        while (aSock == SOCKET_ERROR)
        {
            //aSock = accept(sock,(struct sockaddr *)&serverSock, &asSize);
                aSock = accept(sock, NULL, NULL);
        }
#endif
        if (aSock == SOCKET_ERROR)
        {
            printf("a4\n");
            printf("sockserver: accept() error!. \n");
        }
    // When SAS server connection accepted, change the temp socket (aSock) connection to original one (sock)
    printf("a5\n");
    printf("sockserver: SAS Connected!\n");
    printf("test 0\n");
    //sock = aSock;
    printf("test 1\n");
//**************************************
    memset(dataBuffer, '\0', sizeof(dataBuffer));
    byteRecv = recv(aSock,dataBuffer,sizeof(dataBuffer),0);
    printf(" String Received ============= %s \n", dataBuffer);
    str1 = strlen(dataBuffer);
    printf("String length ============= %d \n", str1);
    str1 = strlen(dataBuffer);
    dataBuffer[byteRecv] = '\0';

    printf(" String Received after   ****============= %s \n", dataBuffer);
    str2 = strlen(dataBuffer);
    //printf("String length after ============= %d \n", str2);
    if(dataBuffer == NULL || strlen(dataBuffer) == 0 )
    {
        printf("String is null \n");
    }

    printf("test 1b\n");
    if(byteRecv == SOCKET_ERROR)
    {
        printf("test 1c\n");
        printf("Data sent by SAS server is not received!. \n");

    }
    else
    {
       printf("test 1d\n");
       printf("sockserver: Received data is: %s \n", dataBuffer);
       printf("sockserver: Bytes received: %ld.\n", byteRecv);
    //   closesocket(aSock);

    }
    cmdName = strtok_s( dataBuffer, seps, &next_token);
    printf(" cmdName : %s \n", cmdName);

    if (strcmp(cmdName,"cmdStartApplication") == 0)
    {
        printf("test 1 \n");
            int i = 0;
//            int k;
            int eindex;
            char *event_index = NULL; // ATSC event index
            char *arg = NULL;
//            wchar_t *myargv[APPL_MAX_ARGS];
            //wchar_t *myargv;
            wchar_t *exeName;
            //char *exeName;
            DWORD exitCode;
            int pExitValue;
            int waitid;

            STARTUPINFO si;
            PROCESS_INFORMATION pi;
            int pid,cpid;
            //wchar_t *exeName;
            ZeroMemory( &si, sizeof(si) ); // windows equivalent to memset
            si.cb = sizeof(si);
            ZeroMemory( &pi, sizeof(pi) );
            event_index = strtok_s (NULL,seps,&next_token);
            printf("test 3 \n");
            //exeName = strtok_s (NULL,seps,&next_token);
            //exeName = _tcsdup(TEXT("\"E:\\dLs\\Java\\jre-6u16-windows-i586-s\""));
            //exeName = _tcsdup(TEXT("\"E:\\dLs\\Java\\jre-6u16-windows-i586-s\""));
            exeName = _tcsdup(TEXT("\"c:\\WINDOWS\\notepad.exe\""));
            //exeName = "c:\\WINDOWS\\notepad.exe";
            //exeName = _tcsdup(TEXT("\"D:\\mypgms\\Daemon_pgms\\sockclient\\Debug\\sockclient\""));
            //exeName =(wchar_t *) "notepad";
            printf("test 4 \n");
            /*for(k=0; k<APPL_MAX_ARGS; k++)
            {
                myargv[k] = (wchar_t *)NULL;
            } */

            // Start the child process.
            //*********************************************************************************
    aThread = CreateThread(
                     NULL,       // default security attributes
                     0,          // default stack size
                     (LPTHREAD_START_ROUTINE) waitpid,
                     NULL,       // no thread function arguments
                     0,          // default creation flags
                     &ThreadID); // receive thread identifier

        if( aThread == NULL )
        {
            printf("CreateThread error: %d\n", GetLastError());
            return;
        }
//********************************************************************************
            if(( cpid=CreateProcess( NULL,   // No module name (use command line)
                (LPWSTR)exeName,        // Command line
                NULL,           // Process handle not inheritable
                NULL,           // Thread handle not inheritable
                FALSE,          // Set handle inheritance to FALSE
                0,              // No creation flags
                NULL,           // Use parent's environment block
                NULL,           // Use parent's starting directory
                &si,            // Pointer to STARTUPINFO structure
                &pi )           // Pointer to PROCESS_INFORMATION structure
            ) != NULL)
            {
                pid = pi.dwProcessId;
                printf( "VMService: CreateProcess Successed for cmdStartApllication, CPID is: %d.\n", cpid );
                printf("System child process ID: %d \n", pid);
                eindex = atoi(event_index);
                addNode(pid, eindex, aSock);
                printf("*********** After add NODE ******************\n");
                //closesocket(aSock);    /* No need to close the socket. */
                //return 0;
            }
            else
            {
                printf( "VMService: CreateProcess failed (%d).\n", GetLastError() );
                //return -1;
            }

            /* Wait until child process exits. */
            printf(" WaitForSingleObject() in cmdStartAppl called ... \n");
            waitid = WaitForSingleObject( pi.hProcess, INFINITE );
            sigchld_handler (pid);
            switch (waitid) {
                        case WAIT_FAILED:
                            sigchld_handler (pid);
                            printf("WAIT_FAILED");
                            break;
                        case WAIT_ABANDONED:
                            sigchld_handler (pid);
                            printf("WAIT_ABANDONED");
                            break;
                        case WAIT_OBJECT_0:
                            printf("WAIT_OBJECT_0");
                            break;
                        case WAIT_TIMEOUT:
                            sigchld_handler (pid);
                            printf("WAIT_TIMEOUT");
                            break;
                        default:
                            printf("...");
                            break;
                        }

                pExitValue = GetExitCodeProcess(pi.hProcess, &exitCode);
                if (pExitValue != 0)
                {
                    /*switch(exitCode)
                    {
                    case STILL_ACTIVE: printf("Process is still active\n");
                    break;
                    default: printf("Exit code = %d\n", exitCode);
                    break;
                    } */

                    if (exitCode == STILL_ACTIVE)
                    {
                        printf("startCmdApplication is still running \n");
                    }
                    else
                    {
                        printf("startCmdApplication is exits \n");
                    }
                }
                else{
                    printf("GetExitCodeProcess() failed with erroe code: %d \n", GetLastError() );
                }

            /* Close process and thread handles. */
            CloseHandle( pi.hProcess );
            CloseHandle( pi.hThread );
            continue;
    }
    else
    {
        printf("cmdStartApllication failed. \n");
        //continue;
    }


    //cmdStartServer
    if (strcmp(cmdName,"cmdStartServer") == 0)
    {
        printf("test 21 \n");
            int i = 0;
//            int k;
            int eindex;
            char *event_index = NULL; // ATSC event index
            char *arg = NULL;
            //wchar_t *myargv[APPL_MAX_ARGS];
            //wchar_t *myargv;
            wchar_t *exeName;
            //char *exeName;

            STARTUPINFO si;
            PROCESS_INFORMATION pi;
            int pid,cpid;
            //wchar_t *exeName;
            ZeroMemory( &si, sizeof(si) ); // windows equivalent to memset
            si.cb = sizeof(si);
            ZeroMemory( &pi, sizeof(pi) );
            event_index = strtok_s (NULL,seps,&next_token);
            printf("test 3 \n");
    //        exeName =strtok_s (NULL,seps,&next_token);
            //exeName = _tcsdup(TEXT("\"E:\\dLs\\Java\\jre-6u16-windows-i586-s\""));
            //exeName = _tcsdup(TEXT("\"E:\\dLs\\Java\\jre-6u16-windows-i586-s\""));
            exeName = _tcsdup(TEXT("\"c:\\WINDOWS\\notepad\""));
            //exeName = _tcsdup(TEXT("\"D:\\mypgms\\Daemon_pgms\\sockclient\\Debug\\sockclient\""));
        //    exeName =(wchar_t *) "notepad";
                printf("test 4 \n");
            /*for(k=0; k<APPL_MAX_ARGS; k++)
            {
                myargv[k] = (wchar_t *)NULL;
            } */

            // Start the child process.
            if(( cpid=CreateProcess( NULL,   // No module name (use command line)
                (LPWSTR)exeName,        // Command line
                NULL,           // Process handle not inheritable
                NULL,           // Thread handle not inheritable
                FALSE,          // Set handle inheritance to FALSE
                0,              // No creation flags
                NULL,           // Use parent's environment block
                NULL,           // Use parent's starting directory
                &si,            // Pointer to STARTUPINFO structure
                &pi )           // Pointer to PROCESS_INFORMATION structure
            ) != NULL)
            {

                pid = pi.dwProcessId;
                printf( "VMService: CreateProcess Successed for cmdStartServer, CPID is: %d.\n", cpid );
                printf("System process ID: %d \n", pid);
                eindex = atoi(event_index);
                addNode(pid, eindex, aSock);
                //closesocket(aSock);    /* No need to close the socket. */
                //return 0;
            }
            else
            {
                printf( "VMService: CreateProcess failed (%d).\n", GetLastError() );
                //return -1;
            }

            /* Wait until child process exits. */
            // WaitForSingleObject( pi.hProcess, INFINITE );

            /* Close process and thread handles. */
            CloseHandle( pi.hProcess );
            CloseHandle( pi.hThread );
             continue;
    }
    else
    {
        printf("cmdStartApllication failed. \n");
        //continue;
    }

continue;

    printf("while end \n");
    } // end of while()

[\code]

so any suggestion on getting child process termination indication without wait time ( that hangs the parent process.

thank you.

Problem of security_descriptor in NTFS volume

Wed, 25 Nov 2009 14:59:59 Z

In NTFS 3.0+, the security_descriptor data is stored in $Secure file, and there is a field in $STANDARD_INFORMATION to describ the id of file's security_descriptor information( but there is $SECURITY_DESCRIPTOR in some files such as root).
My problem is :
Whether one sd can be used by multiple files?(with the same id)?
How to determine one sd is referenced by multiple files?
How to determine how many files have referenced certain sd?

Thx

Ares Lee

How to tell cl.exe or the build process to report more errors during one compilation

Sat, 21 Nov 2009 01:59:42 Z

Sorry, I can't recall how to do this and I can't seem to locate the information by searching, or in the MSDN documentation.
This is in VC6 (VS6), C++ 6.0 ... I know it's a bit old.

I had an undefined function call in my .cpp source file.
When I do a Build in the IDE, the compiler reports an error.
I fix the source, and rebuild.
Then it finds a similar error, farther down in the file. So I fix that.
And on, and on, and on. Dozens ...

I thought that there's a build/compiler option somewhere, where I can tell it to "keep going"
so then, I'll see a more or less complete list of the same error type, in the build log (in the console, or .plg).
This is like a "reduced" output mode, or it gives up once it sees a significant error.

I can't for the life of me find that setting, I'm pretty sure I used it in the past. Thanks! Larry.

SHBrowseForFolder bug in Windows 7?

Wed, 25 Nov 2009 13:17:39 Z

I use BFFM_SETSELECTION and BIF_NEWDIALOGSTYLE in the code below.
In XP and Vista this selects the folder and scrolls the list to make the selected folder visible to the user.

In Windows 7 the list is not scrolled to show the selected folder.

Is there a workaround? (without removing BIF_NEWDIALOGSTYLE)

int CALLBACK BrowseCallbackProc(HWND hWnd,UINT uMsg, LPARAM, LPARAM ) {

  TCHAR szDir[MAX_PATH+1];

  switch(uMsg) {

    case BFFM_INITIALIZED:       

         if( ::GetCurrentDirectory( MAX_PATH, szDir))

           ::SendMessage(hWnd,BFFM_SETSELECTION,true,(LPARAM)szDir);

         break;

   }

   return 0;

}



bool BrowseForFolder( HWND hParent, LPTSTR szOutPath )

{

  bool bSelected = false;                 



  { /* Gets the Shell's default allocator */

    LPMALLOC pMalloc;

    if( SUCCEEDED(::SHGetMalloc(&pMalloc)) ) {

      BROWSEINFO bi;  ZeroMemory(&bi,sizeof(bi));

      bi.hwndOwner = hParent;

      bi.ulFlags  = BIF_NEWDIALOGSTYLE    |                    

                    BIF_RETURNFSANCESTORS | 

                    BIF_RETURNONLYFSDIRS;                                        

      bi.lpfn = BrowseCallbackProc;



      LPITEMIDLIST pidl = ::SHBrowseForFolder(&bi);

      if( pidl ) {

        bSelected = ::SHGetPathFromIDList(pidl,szOutPath)!=0;

        pMalloc->Free(pidl); // Free the PIDL allocated by SHBrowseForFolder.

      }

      pMalloc->Release(); // Release the shell's allocator.

    }

  }

  return bSelected;

}

how to save the data of usernames and passwords safely?

Wed, 25 Nov 2009 11:51:24 Z

As everyone knows, the application of Messenger and Skype can save a user's username and password. What is the solution?

Port to Win7 from XP build fails with message: "side-by-side" configuration is incorrect

Wed, 25 Nov 2009 14:09:32 Z

I have moved an app from XP to Win7 and try and rebuild it with VS2008. The
build fails with a message:

...
>Build log was saved at "file://c:\Users\Edward\Documents\Visual Studio
>2008\Projects\RaceSail\Src\Lua51\LuaLib\Debug\BuildLog.htm"
1>LuaLib - 0 error(s), 1 warning(s)
2>------ Build started: Project: Race, Configuration: Debug Win32 ------
2>Copying "c:\Users\Edward\Documents\Visual Studio
2008\Projects\RaceSail\Src\RoboHlp\Racesail.hlp" file to Target directory
2> 1 file(s) copied.
2>Compiling Lua Source Files
2>The application has failed to start because its side-by-side configuration
is incorrect. Please see the application event log or use the command-line
sxstrace.exe tool for more detail.
2>Project : error PRJ0019: A tool returned an error code from "Compiling Lua
Source Files"
...
The Lua library had been built successfully in an earlier step so there
should be no need to compile the Lua Source files again. I don't understand
message about the "side-by-side" configuration is incorrect! The warning
was from the line:

1>Compiling...
1>cl : Command line warning D9035 : option 'Wp64' has been deprecated and
will be removed in a future release

Under XP there's no problem.

Ed

How to find and detect if an application( in my case, MS EXCEL ) is ACTIVE?

Thu, 02 Oct 2008 00:39:09 Z

I use MFC Visual C++ 4.2.

I have embedded a MS Excel automation process in my application.

I have it working well for the last 1 month.

Everytime my app do the automation process, it creates a new Excel dispatch app like this:

   if( !app.CreateDispatch( "Excel.Application" ) ){
           MessageBox( "Application Creation Failed", "Inquiry Tool", MB_TOPMOST | MB_ICONERROR );
           return FALSE;
       }

My opinion, this process will take much time and slowing down the system.

So now I am thinking of how to handle if users have an Excel app ran and they also ran my application to do Excel automation.

I have the idea to check if the system has 1 Excel application ran, I just need to create / open a NEW WORKBOOK instead of creating a NEW EXCEL APPLICATION OBJECT that takes much time.

So to avoid system being slow down, I will just create a NEW EXCEL APPLICATION OBJECT if there HAS NOT BEEN any MS Excel app opened.

How to check if the MS Excel app has exist / ran?

Can I do it by using FindWindow?

Thank you.

Problem with winsock recv function

Wed, 25 Nov 2009 11:08:16 Z

Hi,

I have an winsock service that receives and sends the data to the server.I have an two thread one is send thread and other is receiver thread.

I am getting a problem that when the thread has sent the data successfully we get the acknowledgement on the same socket from server for that i am using the funtion Recv() to receive the message on same socket but when the acknowledgement is not sent to the socket and Recv() is called then my send thread is hung at Recv() method.

Following is the code i am using for sending:

WORD WINAPI CSendXmlThread::SocketWorkerThr(CSendXmlThread *pClass)

{

std::string sXml;

CSendSocket *sendSocket = NULL;

char rcvBuf[8192] = {0};

std::string hostAddr = pClass->GetHostAddr();

UINT hostPort = pClass->GetHostPort();

// Initialize the STA for this thread

CoInitializeEx(NULL, COINIT_APARTMENTTHREADED );

while (pClass->m_State == CSendXmlThread::RIT_RUN)

{

while (pClass->GetNumRequestsToSend() > 0)

{

sXml = pClass->GetNextXmlFromList();

sendSocket = new CSendSocket();

if (!sendSocket->Initialize(hostPort, hostAddr.c_str()))

{

LOGERROR(E_FAIL, "Failed to initialize send socket.", "ePrescriber Service - Receive Socket Thread")

}

else if (!sendSocket->ConnectToSocket())

{

LOGERROR(E_FAIL, "Failed to conect send socket.", "ePrescriber Service - Receive Socket Thread")

}

else if (!sendSocket->SendSocketData(sXml))

{

LOGERROR(E_FAIL, "Socket send failed.", "ePrescriber Service - Receive Socket Thread")

}

else

{

}

if (!pClass->LogXMLMessageToFile(sXml.c_str()))

{

LOGERROR(E_FAIL, "Logging Failed.", " Send XML Thread- XML Logging Failed")

}

// Receving the Acknowledgement

int bytesRead = 0;

Sleep(10000);

if(pClass->RecvSocketData(sendSocket->GetMasterSocket(), rcvBuf, 8100, &bytesRead))

{

rcvBuf[bytesRead] = '\0';

...

}

------

-----

bool CSendXmlThread::RecvSocketData(SOCKET sock, char *cRecvBuffer, int iBuffSz, int *pBytesRead)

{

iResult = recv(sock, cRecvBuffer, iBuffSz, 0); --my send thread is lost here AS THERE WAS NO MESSAGE AT SOCKET......

cRecvBuffer[*pBytesRead] = '\0';

return true;

}

Do we have any alternate to recv() which will return immediately if there is no data?

CEdit EM_GETFIRSTVISIBLELINE returns always 0 on vista

Tue, 24 Nov 2009 09:10:28 Z

Hello,
I am using the message EM_GETFIRSTVISIBLELINE to get the zero-based index of the first visible character of a single line CEdit control. This works ok in W2k and XP, but not in Vista, there the call always returns 0.

The msdn documentation says this should work:

Return Value

The return value is the zero-based index of the uppermost visible line in a multiline edit control.

Edit controls: For single-line edit controls, the return value is the zero-based index of the first visible character.

Rich edit controls: For single-line rich edit controls, the return value is zero.

Is this a bug, is there a workaround to get the first visible character from a single-line edit control?

Can anyone help me?
Thanks, Andreas

Sporadic (i.e. only sometimes) Linker Errors (LNK2001, LNK2019) when building with devenv.com (2005) from the command line

Mon, 16 Nov 2009 10:14:54 Z

Hi all.

We face the problem that we see some very rare linker errors "unresolved externals" during our automated builds.
Long story short is that one static lib is not resolved for one of dozens of projects once in a while.
See the details below.

Environment:
Visual Studio Professional 2005 SP1
####
Microsoft Visual Studio 2005
Version 8.0.50727.762 (SP.050727-7600)
* Microsoft Visual Studio 2005 Professional Edition - ENU Service Pack 1 (KB926601)
* Security Update for Microsoft Visual Studio 2005 Professional Edition - ENU (KB971090)
####

* 318 Projects in one SLN

Problem:
The solution - among all the other things - builds a common static lib for some of the projects and sometimes for one of the projects we will get unresolved external linker errors for the exported symbols of this static lib.
This happened twice during the last 2 Weeks. That would be 2 times for about ~ 100 automated builds for all development branches.
The error happened in two independent development branches.

+ The project dependencies in the .sln File are set correctly.
+ The generated command line as shown in the GUI correctly displays the library.
+ Building the SLN a second time after the error will "just work"

Logging Output:
####
Solution C:\...xyz.sln
Running C:\Programme\Microsoft Visual Studio 8\Common7\IDE\devenv.com with parameters : /build "Release|Win32" "C:\...xyz.sln"
------
Microsoft (R) Visual Studio Version 8.0.50727.762.
Copyright (C) Microsoft Corp 1984-2005. All rights reserved.
1>------ Build started: Project: P001, Configuration: Release Win32 ---
2>------ Build started: Project: P002, Configuration: Release Win32 ---
3>------ Build started: Project: P003, Configuration: Release Win32 ---
4>------ Build started: Project: P004, Configuration: Release Win32 ---
3>Compiling...
4>Compiling...
2>Performing Custom Build Step
(....)
22>------ Build started: Project: CD_Driver, Configuration: Release Win3
(...)
22>CommonDriver.cpp
(...)
22>CDriver.cpp
(...)
22>ErrorTools.cpp
22>Generating Code...
(...)
22>Creating library...
18>a.cpp
18>b.cpp
22>Build log was saved at "file://c:\...\CD_Driver\Release\BuildLog.htm"
22>CD_Driver - 0 error(s), 0 warning(s)
(....)
264>------ Build started: Project: CDHM13, Configuration: Release Win32
265>------ Build started: Project: P265, Configuration: Release Win32
264>Compiling...
265>Compiling...
262>Linking...
(....)
264>HoribaMDLT1300.obj : error LNK2019: unresolved external symbol "public: void __thiscall CCDriver::LogString(int,char const *)" (?LogString@CCDriver@@QAEXHPBD@Z) referenced in function "private: int __thiscall CHoribaMDLT1300::InitDeviceLAN(void)" (?InitDeviceLAN@CHoribaMDLT1300@@AAEHXZ)
(.... more LNK2019 ....)
264>HoribaMDLT1300.obj : error LNK2001: unresolved external symbol "protected: virtual void __thiscall CCDriver::ResetErrorCodes(void)" (?ResetErrorCodes@CCDriver@@MAEXXZ)
(.... more LNK2001 ....)
264>.\..\..\Release/CDHM13.dll : fatal error LNK1120: 69 unresolved externals
264>Build log was saved at "file://c:\.....\Release\BuildLog.htm"
264>CDHM13 - 71 error(s), 0 warning(s)
267>Compiling...
(....)
========== Build: 312 succeeded, 1 failed, 0 up-to-date, 0 skipped ===
devenv.com returned Error code : 1
####

The other time this happened in exactly the same manner for another project in another build two weeks earlier, where it was project build number 78.

The linker commandline as shown in the GUI for these projects:
(78)
/OUT:".\..\..\Release/CDH900G.dll" /INCREMENTAL:NO /NOLOGO
/LIBPATH:"C:\Programme\boost_library-1_34_1\vc8libs" /DLL /MANIFEST
/MANIFESTFILE:".\Release\CDH900G.dll.intermediate.manifest" /DEBUG
/PDB:".\..\..\Release/CDH900G.pdb" /SUBSYSTEM:WINDOWS /BASE:"0x49600000"
/IMPLIB:".\..\..\Release/CDH900G.lib" /MACHINE:X86 /ERRORREPORT:PROMPT
winmm.lib "..\..\release\ttools.lib" "..\..\release\tdm.lib" "..\..\release\cd_driver.lib"

(264)
/OUT:".\..\..\Release/CDHM13.dll" /INCREMENTAL:NO /NOLOGO
/LIBPATH:"C:\Programme\boost_library-1_34_1\vc8libs" /DLL /MANIFEST
/MANIFESTFILE:".\Release\CDHM13.dll.intermediate.manifest" /DEBUG
/PDB:".\..\..\Release/CDHM13.pdb" /SUBSYSTEM:WINDOWS /BASE:"0x43000000"
/IMPLIB:".\..\..\Release/CDHM13.lib" /MACHINE:X86 /ERRORREPORT:PROMPT
Mpr.lib winmm.lib "..\..\release\ttools.lib" "..\..\release\tdm.lib" "..\..\release\cd_driver.lib"

As can be seen, the GUI tells me that the cd_driver.lib is correctly referenced.

So ... anyone got any idea, why Visual Studio 2005 would rarely ignore linker dependencies and just spit out unresolved externals instead of linking the library?

Note: I have found some references on the net that there are problems when there are transitive dependencies (ProjA > ProjB > ProjC) with MSBuild, but this is not the case here. We're not using MSBuild and the dependency is direct.

cheers,
Martin

Visual C++ syntax to managed code

Tue, 24 Nov 2009 19:37:42 Z

I am trying to use the new COM client API which can be used for unmanaged and managed clients alike. The only documentation currently available through MSDN only gives examples in unmanaged VC++. The header file for the interface definition is UIAutomation.h. The following code declares a global pointer to an IUIAutomation interface, initialise COM, and create an instance of the CUIAutomation class and retrieve the IUIAutomation interface in the global pointer.

IUIAutomation * pAutomation;
CoCreateInstance(__uuidof(CUIAutomation), NULL,
                 CLSCTX_INPROC_SERVER,
                 __uuidof(IUIAutomation),
                 (void **)&pAutomation);

However I want to use this native API with managed code (C# Windows form) for performance reasons (it's much faster than the managed API). I am not overly familiar with C++ syntax so the question is how does this translate into managed code (presumably I wouldn't be using a global pointer for a start). Sorry but I can't quite get my head around the relationship between the pointers interface and class.

Any help greatly appreciated.

Melanie

Get remote server online from a service at boot

Tue, 24 Nov 2009 23:01:07 Z

I need to determine if a server is online at boot time (before login) from my messaging service, which runs as Local System on an XP computer. I have the name of the server, and I need to get WMI information off of that server (2003).

Can anyone help? I'm having trouble finding this answer. Thanks!

vc++ services using timer

Sat, 21 Nov 2009 09:02:12 Z

i have a service that is has been set to be able to interact with the desktop. It execute exe(appliaction) and watches an exe and determines if it is running by using timer in vc++ 1.1..its running .but mouse pointer move on window(appliaction) appliaction gets hanging

OnInitialUpdate Issue

Tue, 24 Nov 2009 10:29:11 Z

Hello

I been having a problem that is simple, but is a blocking issue. When I make a MFC/C++ application, OnInitialUpdate calls for a while but randomly stops working after a few minutes to hours of development.

The entry function where the problem occurs is in the *app class

// Dispatch commands specified on the command line. Will return FALSE if


// app was launched with /RegServer, /Register, /Unregserver or /Unregister.


if (!ProcessShellCommand(cmdInfo))


return FALSE;

This began happening ever since I've been using VS2008.  At first I had the trial version but I uninstalled it and installed my full edition but unfortunatly, the issue still persists.  I am running this on an XP.  I have tried this on my Windows7 Beta and it seems to behave properly. But are there any users who can make a MFC application with VS2008 on XP and not experience this issue?  Any advice and ideas are more than welcomed as well.

Help is Greatly appreciated.

Thanks

error: "This application has failed to start because the application configuration is incorrect. Reinstalling the application may fix this problem."

Tue, 17 Nov 2009 10:25:17 Z

Hi to all

I use setup and deployment projects to publish my program.
On the destination computer that doesn't have visual C++, firstly I install the
.net Framework, and run the setup file. The setup process ran without any problem but the installed exe file doesn't work.
It gives the error "This application has failed to start because the application configuration is incorrect. Reinstalling the application may fix this problem.".
What's the problem?

Link dependencies automatically from the command line?

Mon, 16 Nov 2009 12:29:42 Z

I'm trying to compile a program from the command line that uses the Win32 API command "MessageBox". It compiles just fine using g++ but when I use Visual Studio's compiler it can't seem to resolve the external dependencies by itself.

I tried:

cl main.obj Util.obj /Fea.exe

and

link main.obj Util.obj /OUT:a.exe

As well as trying to point to the User32 include and libpaths to cl and linker using /I and /LIBPATH.

This is the error:

main.obj : error LNK2019: unresolved external symbol __imp__MessageBoxA@16 referenced in function _main
a.exe : fatal error LNK1120: 1 unresolved externals

This can easily be fixed by including the library directly:

cl main.obj Util.obj /Fea.exe /link User32.lib

But I want the compiler to look at the libraries path and resolve the dependency automatically.

I am using the command line that starts from the IDE so all of the paths and environment variables are correctly set.

ATL Collection of non-trival objects

Thu, 19 Feb 2009 19:07:36 Z

I would like to expose an ATL COM collection of CMainClass objects such that it can be accessed by a C#, VB, or C++ client.

I don't have a problem setting up the collection itself, but I don't know how to allow the COM clients access to classes A, B, and C. Should I make A, B, & C COM objects with the ones containing a std::list<> each ATL collections in their own right?

Is there an easier way to do this?!?!

Thanks,
PaulH

class C    

{    

public:    

    // get/set functions...    

protected:    

    std::string str1_;    

    std::list< std::string > list1_;    

};    

class A    

{    

public:    

    // get/set functions...    

protected:    

    std::list< C > list1_;    

};    

class B    

{    

public:    

    // get/set functions...    

protected:    

    std::string str1_;    

    std::string str2_;    

};    

class CMainClass    

{    

public:     

    void GetA( A* a ) const;    

    void SetA( const A& a );    

    void GetB( B* b ) const;    

    void SetB( const B& b );    

protected:    

    A a_;    

    B b_;    

};

How to create an independant .exe application in Visual C++ ?

Tue, 24 Nov 2009 13:33:49 Z

I'm using Visual C++ 2008 and I'm working on an MFC application using the "Debug" configuration on a win32 platform.
I'm struggling to create a .exe application which is able to work independantly, on computers which don't have Visual Studio 2008.
Is it possible to create an independant .exe file and how would I go about doing this? Or do I have to install Visual Studio on all the computers to be able to run the application?

Thanks,

Christophe

How to destroy SafeArray

Wed, 18 Nov 2009 08:01:13 Z

Hello every one;

I have created the safearray in the COM component and i want to destroy it in the client code that is in the VB.net code so how can i destroy the safearray in the client code which is created in the com dll.

Thanks in advance.

Logic is my Greatest Asset !

MDA 'LoaderLock' report unreliable?

Thu, 05 Nov 2009 17:36:09 Z

I have a managed (C#) app calling a mixed (managed/unmanaged) class library written in C++, which in turn is calling methods on an in-process COM object, which loads a DLL.

All is fine until, in response to a mouse click, I call a method on the COM object that causes it to call FreeLibrary on the bottom-level DLL. During the execution of FreeLibrary, I get an MDA 'LoaderLock' pop up. The additional information provided says "Attempting managed execution inside OS Loader lock. Do not attempt to run managed code inside a DllMain or image initialization function since doing so can cause the application to hang". Since the DLL is a 'plain C' DLL, and pre-dates .Net, I do not think it likely that it could be trying to run any managed code (the call stack and stepping through the disassembly tends to support my view).

Is it possible that the debugging assistant is detecting some other 'not recommended' behaviour of the DLL as it executes DllMain, but is misreporting it as an attempt to execute managed code?

tab order for dynamically added activeX controls in VC++

Wed, 25 Nov 2009 09:17:45 Z

How to add tab order for the controls which have been created dynamically.....

GetClientRect includes status bar area

Tue, 24 Nov 2009 23:58:06 Z

Hello,

For some reason whenever I call GetClientRect it appears to include the status bar area. I am creating it with the default flags, and one of the panels is owner-drawn. I can't figure out why this keeps happening!

Bug Report:ITextServices::Release() doesn't effect.That causes memory leaking.

Sun, 22 Nov 2009 15:13:05 Z

I do call ITextServices::Release() to release that reference. But the allocated memory isn't released. I got following stack trace by "!heap -p -a" in Windbg after ITextServices::Release() is called.
Or, who can tell me what is the offical steps to release ITextServices correctly?
That issue block my work. Anybody could help me? Thanks in advance.

0:001> !heap -p -a 027b5360
    address 027b5360 found in
    _HEAP @ 150000
      HEAP_ENTRY Size Prev Flags    UserPtr UserSize - state
        027b5360 0013 0000  [07]   027b5368    00080 - (busy)
        Trace: 02fb
        7c98ee72 ntdll!RtlDebugAllocateHeap+0x000000e1
        7c96b3a2 ntdll!RtlAllocateHeapSlowly+0x00000044
        7c93aa2b ntdll!RtlAllocateHeap+0x00000e64
        7c8099ef kernel32!LocalAlloc+0x00000058
        74de8f78 RICHED20!CW32System::PvReAlloc+0x00000026
        74d9577c RICHED20!CArrayBase::ArAdd+0x00000040
        74d957d1 RICHED20!CArrayBase::ArInsert+0x0000001a
        74da426c RICHED20!CTxtArray::AddBlock+0x0000001c
        74dd90d6 RICHED20!CTxtPtr::InsertRange+0x00000034
        74dd99bf RICHED20!CTxtPtr::ReplaceRange+0x00000110
        74dcb3a6 RICHED20!CRchTxtPtr::ReplaceRange+0x0000039c
        74da7b24 RICHED20!CTxtEdit::SetRichDocEndEOP+0x00000041
        74daa42f RICHED20!CTxtEdit::Init+0x000003be
        74ddd88a RICHED20!CreateTextServices+0x000000a0
*** WARNING: Unable to verify checksum for d:\Build\BooguNT\BooguNote_2009_11_22_datime\BooguNote\Debug\BooguNote.exe
        4b7b40 BooguNote!CBooguNoteText::Init+0x00000260
        4bd4ad BooguNote!CreateHost+0x000000fd
        4bd5f2 BooguNote!CreateTextControl+0x00000062
        4cb745 BooguNote!CBooguNoteView::CreateTextBlock+0x00000085
        4bf801 BooguNote!CBooguNoteView::LoadData+0x00000141
        4bea3b BooguNote!CBooguNoteView::OpenFile+0x0000002b
        4beb5e BooguNote!CBooguNoteView::OnCreate+0x0000008e
        4e7790 BooguNote!CBooguNoteView::ProcessWindowMessage+0x000000a0
        4a786a BooguNote!ATL::CWindowImplBaseT<ATL::CWindow,ATL::CWinTraits<1442840576,0> >::WindowProc+0x0000007a
        77d18734 USER32!InternalCallWinProc+0x00000028
        77d18816 USER32!UserCallWinProcCheckWow+0x00000150
        77d1b4c0 USER32!DispatchClientMessage+0x000000a3
        77d1f9fe USER32!__fnINLPCREATESTRUCT+0x0000008b
        7c92e473 ntdll!KiUserCallbackDispatcher+0x00000013
        77d1fecc USER32!_CreateWindowEx+0x000001ed
        77d1fc58 USER32!CreateWindowExW+0x00000033
        4aa5f2 BooguNote!ATL::CWindowImplBaseT<ATL::CWindow,ATL::CWinTraits<1442840576,0> >::Create+0x00000122
        4f0e29 BooguNote!ATL::CWindowImpl<CBooguNoteView,ATL::CWindow,ATL::CWinTraits<1442840576,0> >::Create+0x000000a9

:001> !heap -p -a 027b53f8
    address 027b53f8 found in
    _HEAP @ 150000
      HEAP_ENTRY Size Prev Flags    UserPtr UserSize - state
        027b53f8 0008 0000  [07]   027b5400    00028 - (busy)
        Trace: 02fe
        7c98ee72 ntdll!RtlDebugAllocateHeap+0x000000e1
        7c96b3a2 ntdll!RtlAllocateHeapSlowly+0x00000044
        7c93aa2b ntdll!RtlAllocateHeap+0x00000e64
        7c8099ef kernel32!LocalAlloc+0x00000058
        74d919fb RICHED20!CW32System::PvAlloc+0x00000011
        74d919e3 RICHED20!operator new+0x0000000f
        74dde615 RICHED20!CTxtEdit::GetDocInfo+0x00000013
        74ddd7e1 RICHED20!CTxtEdit::TxSetText+0x0000001b
        4b7bc5 BooguNote!CBooguNoteText::Init+0x000002e5
        4bd4ad BooguNote!CreateHost+0x000000fd
        4bd5f2 BooguNote!CreateTextControl+0x00000062
        4cb745 BooguNote!CBooguNoteView::CreateTextBlock+0x00000085
        4bf801 BooguNote!CBooguNoteView::LoadData+0x00000141
        4bea3b BooguNote!CBooguNoteView::OpenFile+0x0000002b
        4beb5e BooguNote!CBooguNoteView::OnCreate+0x0000008e
        4e7790 BooguNote!CBooguNoteView::ProcessWindowMessage+0x000000a0
        4a786a BooguNote!ATL::CWindowImplBaseT<ATL::CWindow,ATL::CWinTraits<1442840576,0> >::WindowProc+0x0000007a
        77d18734 USER32!InternalCallWinProc+0x00000028
        77d18816 USER32!UserCallWinProcCheckWow+0x00000150
        77d1b4c0 USER32!DispatchClientMessage+0x000000a3
        77d1f9fe USER32!__fnINLPCREATESTRUCT+0x0000008b
        7c92e473 ntdll!KiUserCallbackDispatcher+0x00000013
        77d1fecc USER32!_CreateWindowEx+0x000001ed
        77d1fc58 USER32!CreateWindowExW+0x00000033
        4aa5f2 BooguNote!ATL::CWindowImplBaseT<ATL::CWindow,ATL::CWinTraits<1442840576,0> >::Create+0x00000122
        4f0e29 BooguNote!ATL::CWindowImpl<CBooguNoteView,ATL::CWindow,ATL::CWinTraits<1442840576,0> >::Create+0x000000a9
        4ef8d8 BooguNote!CMainFrame::OpenFileByName+0x00000158
        4e900c BooguNote!CMainFrame::OnDropFiles+0x0000013c
        4e10b7 BooguNote!CMainFrame::ProcessWindowMessage+0x000003a7
        5166ca BooguNote!ATL::CWindowImplBaseT<ATL::CWindow,ATL::CWinTraits<114229248,262400> >::WindowProc+0x0000007a
        77d18734 USER32!InternalCallWinProc+0x00000028
        77d18816 USER32!UserCallWinProcCheckWow+0x00000150

0:001> !heap -p -a 027b5438
    address 027b5438 found in
    _HEAP @ 150000
      HEAP_ENTRY Size Prev Flags    UserPtr UserSize - state
        027b5438 001b 0000  [07]   027b5440    000c0 - (busy)
        Trace: 02ff
        7c98ee72 ntdll!RtlDebugAllocateHeap+0x000000e1
        7c96b3a2 ntdll!RtlAllocateHeapSlowly+0x00000044
        7c93aa2b ntdll!RtlAllocateHeap+0x00000e64
        7c8099ef kernel32!LocalAlloc+0x00000058
        74de8f78 RICHED20!CW32System::PvReAlloc+0x00000026
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        74da202d RICHED20!CDisplayML::RecalcLines+0x000000a3
        74da2ba2 RICHED20!CDisplayML::RecalcView+0x00000033
        74d9ee4e RICHED20!CDisplay::RecalcView+0x00000029
        74ddb211 RICHED20!CTxtEdit::OnTxInPlaceActivate+0x00000066
        4b7c7c BooguNote!CBooguNoteText::Init+0x0000039c
        4bd4ad BooguNote!CreateHost+0x000000fd
        4bd5f2 BooguNote!CreateTextControl+0x00000062
        4cb745 BooguNote!CBooguNoteView::CreateTextBlock+0x00000085
        4bf801 BooguNote!CBooguNoteView::LoadData+0x00000141
        4bea3b BooguNote!CBooguNoteView::OpenFile+0x0000002b
        4beb5e BooguNote!CBooguNoteView::OnCreate+0x0000008e
        4e7790 BooguNote!CBooguNoteView::ProcessWindowMessage+0x000000a0
        4a786a BooguNote!ATL::CWindowImplBaseT<ATL::CWindow,ATL::CWinTraits<1442840576,0> >::WindowProc+0x0000007a
        77d18734 USER32!InternalCallWinProc+0x00000028
        77d18816 USER32!UserCallWinProcCheckWow+0x00000150
        77d1b4c0 USER32!DispatchClientMessage+0x000000a3
        77d1f9fe USER32!__fnINLPCREATESTRUCT+0x0000008b
        7c92e473 ntdll!KiUserCallbackDispatcher+0x00000013
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        77d1fc58 USER32!CreateWindowExW+0x00000033
        4aa5f2 BooguNote!ATL::CWindowImplBaseT<ATL::CWindow,ATL::CWinTraits<1442840576,0> >::Create+0x00000122
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        4ef8d8 BooguNote!CMainFrame::OpenFileByName+0x00000158
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creating an array of BitArray in visual C++

Thu, 19 Nov 2009 15:48:49 Z

hi,

I would like to create an array of BitArrays. Basically I need an array of 12 BitArrays with 32 bits each.

I know I could try to do this by declaring a matrix of bools but it is not as elegant.

Normally I declare a BitArray like this:

BitArray^ array1;

and I allocate room for it by doing something like this

array1 = gcnew BitArray(NoOfBits);

How do I declare an array of bitArrays and how do I access it afterwards? Is this even possible?

Best regards

C

Change Filenames to all lower case

Mon, 23 Nov 2009 23:08:01 Z

Anybody have any code to rename every file in a directory to all lowercase so that file associations work properly.

I have some files restored from DVD that are all uppercase and they do not work until I rename the extensions etc.

Vote if answered or helpful, I am running for Office (joke)! IT/Developer, Windows/Linux/Mainframe

Server: P4-2GHz, 1.5 GB RAM, Linux Server, need IDE/SATA disks for my chess site

Workstation: Asus M2NBP-VM CSM, Athlon64 X2 4200+ 65W CPU, 2GB RAM, NVIDIA 8600GT, 320GB + 160G backup, Windows 7 Ultimate x64.

How to create a MFC project in Visual C++ 2010 express edition.

Wed, 25 Nov 2009 06:20:34 Z

Hello Guys,

I have downloaded Visual C++ 2010 express edition and installed it in my PC . Now i don't know how to create a MFC Dialog based application in this . Please help me...

Thanks